Microsoft Windows Kernel Unchecked LPC Buffer Privilege Escalation Vulnerability

2004-12-14T00:00:00
ID SMNTC-11913
Type symantec
Reporter Symantec Security Response
Modified 2004-12-14T00:00:00

Description

Description

Microsoft Windows is prone to a locally exploitable privilege escalation vulnerability. This is reportedly due to an unchecked buffer that is exposed through the LPC (Local Procedure Call) interface in the Windows kernel. Successful exploitation would permit a local attacker to compromise the vulnerable computer. The vendor has stated that this issue may likely only result in a denial of service on Windows XP SP2 and Windows Server 2003 platforms. This may be due to buffer overflow protection features included in these platforms. It is possible that a skilled attacker could bypass these security measures. It is noted that the vulnerability is present in an API, so any applications or libraries that rely on the API may be exposed to this issue.

Technologies Affected

  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Advanced Server SP1
  • Microsoft Windows 2000 Advanced Server SP2
  • Microsoft Windows 2000 Advanced Server SP3
  • Microsoft Windows 2000 Advanced Server SP4
  • Microsoft Windows 2000 Datacenter Server
  • Microsoft Windows 2000 Datacenter Server SP1
  • Microsoft Windows 2000 Datacenter Server SP2
  • Microsoft Windows 2000 Datacenter Server SP3
  • Microsoft Windows 2000 Datacenter Server SP4
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Professional SP1
  • Microsoft Windows 2000 Professional SP2
  • Microsoft Windows 2000 Professional SP3
  • Microsoft Windows 2000 Professional SP4
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Server SP1
  • Microsoft Windows 2000 Server SP2
  • Microsoft Windows 2000 Server SP3
  • Microsoft Windows 2000 Server SP4
  • Microsoft Windows NT Enterprise Server 4.0
  • Microsoft Windows NT Enterprise Server 4.0 SP1
  • Microsoft Windows NT Enterprise Server 4.0 SP2
  • Microsoft Windows NT Enterprise Server 4.0 SP3
  • Microsoft Windows NT Enterprise Server 4.0 SP4
  • Microsoft Windows NT Enterprise Server 4.0 SP5
  • Microsoft Windows NT Enterprise Server 4.0 SP6
  • Microsoft Windows NT Enterprise Server 4.0 SP6a
  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server 4.0 SP1
  • Microsoft Windows NT Server 4.0 SP2
  • Microsoft Windows NT Server 4.0 SP3
  • Microsoft Windows NT Server 4.0 SP4
  • Microsoft Windows NT Server 4.0 SP5
  • Microsoft Windows NT Server 4.0 SP6
  • Microsoft Windows NT Server 4.0 SP6a
  • Microsoft Windows NT Terminal Server 4.0
  • Microsoft Windows NT Terminal Server 4.0 SP1
  • Microsoft Windows NT Terminal Server 4.0 SP2
  • Microsoft Windows NT Terminal Server 4.0 SP3
  • Microsoft Windows NT Terminal Server 4.0 SP4
  • Microsoft Windows NT Terminal Server 4.0 SP5
  • Microsoft Windows NT Terminal Server 4.0 SP6
  • Microsoft Windows NT Terminal Server 4.0 SP6a
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Workstation 4.0 SP1
  • Microsoft Windows NT Workstation 4.0 SP2
  • Microsoft Windows NT Workstation 4.0 SP3
  • Microsoft Windows NT Workstation 4.0 SP4
  • Microsoft Windows NT Workstation 4.0 SP5
  • Microsoft Windows NT Workstation 4.0 SP6
  • Microsoft Windows NT Workstation 4.0 SP6a
  • Microsoft Windows Server 2003 Datacenter Edition
  • Microsoft Windows Server 2003 Datacenter Edition Itanium
  • Microsoft Windows Server 2003 Datacenter Edition Itanium SP1 Beta 1
  • Microsoft Windows Server 2003 Datacenter Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise Edition
  • Microsoft Windows Server 2003 Enterprise Edition Itanium
  • Microsoft Windows Server 2003 Enterprise Edition Itanium SP1 Beta 1
  • Microsoft Windows Server 2003 Enterprise Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Standard Edition
  • Microsoft Windows Server 2003 Standard Edition SP1 Beta 1
  • Microsoft Windows Server 2003 Web Edition
  • Microsoft Windows Server 2003 Web Edition SP1 Beta 1
  • Microsoft Windows XP 64-bit Edition
  • Microsoft Windows XP 64-bit Edition SP1
  • Microsoft Windows XP 64-bit Edition Version 2003
  • Microsoft Windows XP 64-bit Edition Version 2003 SP1
  • Microsoft Windows XP Home
  • Microsoft Windows XP Home SP1
  • Microsoft Windows XP Home SP2
  • Microsoft Windows XP Media Center Edition
  • Microsoft Windows XP Media Center Edition SP1
  • Microsoft Windows XP Media Center Edition SP2
  • Microsoft Windows XP Professional
  • Microsoft Windows XP Professional SP1
  • Microsoft Windows XP Professional SP2

Recommendations

Permit local access for trusted individuals only. Where possible, use restricted environments and restricted shells.
Do not permit untrusted individuals to have local access to computers. This may limit exposure to exploitation of latent local vulnerabilities.

Microsoft has released updates to address this vulnerability in supported versions of the Windows operating system.